public class Java三角 {
    public static void main(String[] args) {
        System.out.println("\t\t\t2\t\t\t");
        System.out.println("\t\t2\t2\t2");
        System.out.println("\t2\t2\t2\t2\t2");
        System.out.println("2\t2\t2\t2\t2\t2\t2");
    }
}
